EP2183404A1 - Segment de piston - Google Patents

Segment de piston

Info

Publication number
EP2183404A1
EP2183404A1 EP08786253A EP08786253A EP2183404A1 EP 2183404 A1 EP2183404 A1 EP 2183404A1 EP 08786253 A EP08786253 A EP 08786253A EP 08786253 A EP08786253 A EP 08786253A EP 2183404 A1 EP2183404 A1 EP 2183404A1
Authority
EP
European Patent Office
Prior art keywords
piston ring
wear protection
protection layer
ring according
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08786253A
Other languages
German (de)
English (en)
Other versions
EP2183404B1 (fr
Inventor
Steffen Hoppe
Manfred Fischer
Christiane Bauer
Ralf Lammers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Federal Mogul Burscheid GmbH
Original Assignee
Federal Mogul Burscheid GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39930716&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2183404(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Federal Mogul Burscheid GmbH filed Critical Federal Mogul Burscheid GmbH
Publication of EP2183404A1 publication Critical patent/EP2183404A1/fr
Application granted granted Critical
Publication of EP2183404B1 publication Critical patent/EP2183404B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/0641—Nitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • C23C28/044—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • C23C28/048—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material with layers graded in composition or physical properties
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof

Definitions

  • the invention relates to a piston ring according to the preamble of claim 1.
  • Piston rings are provided with wear protection layers on the tread and / or on the ring flanks in order to meet the required service life.
  • Wear protection layers on the tread and / or on the ring flanks in order to meet the required service life.
  • Wear protection layers are applied by means of thermal spraying methods, galvanic methods or thin-film technologies and optionally processed by heat treatment and diffusion processes.
  • the layers are usually applied largely homogeneous and thus unstructured.
  • the wear resistance is adjusted by appropriate hardness of the material.
  • burn marks was originally defined by appearances on the tread of piston rings. The discoloration and the so-called "cobblestone formation" on the chrome surface are indicative of a thermal overload.When the term burn marks is extended to other materials as well, all manifestations that indicate thermal overstressing of the piston ring raceway are to be understood Burn marks and food are flowing. When eating, the surface of the piston rings shows strong bounces and / or material yields. Burn marks and Feesserwerden caused by metallic contact of the barrel partner, which occurs due to lack of lubricating oil or too high surface pressure of the piston rings.
  • Leaking piston rings and non-circular cylinders which are not attached to the cylinder wall, allow unwanted passage of the hot combustion gases (blow-by losses), whereby the lubricating oil is burned off and a metallic contact of the running partners occurs (see www.motorlexikon.de).
  • a galvanic hard chrome layer which has cracks in which diamond particles with a size of 0.25 to 0.5 ⁇ m are embedded.
  • further hard material particles of tungsten carbide, chromium carbide, aluminum oxide, silicon carbide, silicon nitride, boron carbide or boron nitride may be incorporated in the cracks.
  • this layer also has very good emergency running properties, in particular due to the conversion of diamond to graphite at temperatures of about 700 0 C or higher.
  • chromium nitride applied by means of PVD processes with a decomposition temperature of about 2000K.
  • DE 10 2004028486 A1 proposes a coating of several individual layers, which consist alternately of chromium and chromium nitride.
  • the chromium nitride layers may consist of CrN, Cr 2 N or mixtures thereof.
  • the coating process is controlled so that the individual chromium nitride layers have on both sides a hem of C 1 N and a core of CrN.
  • Each individual layer is at least 0.01 ⁇ m thick.
  • the maximum thickness is 10 ⁇ m.
  • the total thickness of the coating is given as 5 to 100 ⁇ m.
  • DE 10 2004032 403 B3 describes piston rings which have on a chromium adhesion layer a CrN gradient layer with an outwardly increasing nitrogen content.
  • a piston rings for internal combustion engines are known, which are provided with a multi-layer system, the individual layers have the same metallic component and differ only in nitrogen content.
  • the layer thicknesses of the individual layers are given as ⁇ 1 ⁇ m.
  • the layers are applied by means of a PVD process, in particular an arc process.
  • the wear protection layer is preferably made of aluminum nitride with a proportion of at least 5% by volume. Further preferred proportions are at least 10% by volume, at least 20% by volume, at least 30% by volume, in particular at least 40% by volume and particularly preferably at least 50% by volume.
  • the percentage by volume refers to the entire wear protection layer, whether it consists of a homogeneous liner layer or a multilayer coating system.
  • the wear protection layer consists of a deposit layer of a ternary system.
  • a particularly preferred ternary system consists of CrAIN.
  • the wear protection layer can also consist of a periodically constructed multilayer coating system in which each periodicity consists of at least two individual layers which differ in terms of their composition.
  • the multilayer film system preferably has individual layers of AIN and of a nitride of the group Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Si and C.
  • each periodicity has at least one single layer of AlN.
  • Preferred is a Periodicity from two single layers, of which one single layer consists of AIN.
  • At least one single layer consists of a nitride of at least two metals of said group.
  • multilayer coating systems with single layers of CrN and AIN are preferred.
  • Single layer systems of single layers with chromium nitride and aluminum nitride even have thermal conductivity values of 225 W / (m » K).
  • the thickness of a single layer of such a multilayer coating system is preferably> 15 nm to 1 ⁇ m.
  • the thickness of a single layer of the multilayer coating system is> 2 nm to 15 nm.
  • so-called superlattice structures are formed.
  • Superlattice structures are created by the disturbed grid arrangement in the immediate vicinity of the grid of the adjacent single layer.
  • the individual layers influence each other in the boundary region, so that the lattice parameters are changed there.
  • the total thickness of the wear protection layer both in multilayer coating systems and in deposit layers is preferably> 5 ⁇ m.
  • Preferred total thicknesses of the wear protection layer are 5 ⁇ m to 60 ⁇ m, 5 ⁇ m to 15 ⁇ m and 25 ⁇ m to 35 ⁇ m.
  • an adhesion layer of a metal or a nitride of the abovementioned group Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Si and C is preferably arranged.
  • the adhesive layer consists of chromium.
  • the wear protection layer is preferably applied by means of a PVD method, a reactive arc method or a CVD method.
  • the basic principle of the photoacoustic process was used to measure the thermal diffusivity.
  • the PVD layer was subjected to periodic irradiation with light and the thermal diffusivity was measured.
  • the thermal conductivity of the sample is calculated taking into account the density and the specific heat.
  • the specific heat capacity in thin layers corresponds to that of the compact material, which is not necessarily true for the density. Therefore, the density of the compact material was used for the evaluation.
  • GDC ® chromium coating with diamond according to DE 19931829 A1
  • the thermal conductivity of typical CrN-PVD layers is 170 W / (rrvK).
  • the thermal conductivity may differ from that of the compact material, since these layers are not necessarily in thermal equilibrium and typically have significant residual stresses.
  • the thermal conductivity of a multilayer coating system according to the invention with individual layers of CrN and AIN is 225.3 W (nVK). This multi-layer system has no burn marks.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Physical Vapour Deposition (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

Pour éviter toute trace de brûlures sur les segments de piston, l'invention propose de doter le piston d'une couche protectrice contre l'usure, qui se compose d'un matériau ayant une conductivité thermique d'au moins 180 W/(m.K). La couche protectrice contre l'usure est constituée d'au moins 5 % en volume de nitrure d'aluminium.
EP08786253.8A 2007-07-28 2008-07-18 Segment de piston Not-in-force EP2183404B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007035502A DE102007035502A1 (de) 2007-07-28 2007-07-28 Kolbenring
PCT/EP2008/059473 WO2009016051A1 (fr) 2007-07-28 2008-07-18 Segment de piston

Publications (2)

Publication Number Publication Date
EP2183404A1 true EP2183404A1 (fr) 2010-05-12
EP2183404B1 EP2183404B1 (fr) 2013-06-05

Family

ID=39930716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08786253.8A Not-in-force EP2183404B1 (fr) 2007-07-28 2008-07-18 Segment de piston

Country Status (8)

Country Link
US (1) US9447490B2 (fr)
EP (1) EP2183404B1 (fr)
JP (1) JP5628030B2 (fr)
CN (1) CN101835919A (fr)
BR (1) BRPI0814130B1 (fr)
DE (1) DE102007035502A1 (fr)
PT (1) PT2183404E (fr)
WO (1) WO2009016051A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
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DE102010038868A1 (de) 2010-08-04 2012-02-09 Federal-Mogul Burscheid Gmbh Kolbenring mit Innenbeschichtung
DE102011076453A1 (de) 2011-05-25 2012-11-29 Federal-Mogul Burscheid Gmbh Kolbenring mit Verbundbeschichtung

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DE102012200378A1 (de) * 2012-01-12 2013-07-18 Federal-Mogul Burscheid Gmbh Kolbenring
US9580817B2 (en) 2012-12-04 2017-02-28 Vergason Technology, Inc. Bilayer chromium nitride coated articles and related methods
US8986465B2 (en) * 2013-01-15 2015-03-24 Mahle Industries Inc. Piston ring with localized nitrided coating
BR102013019686B1 (pt) 2013-08-01 2020-11-03 Mahle Metal Leve S/A anel de pistão e seu processo de fabricação
DE102014213822A1 (de) 2014-07-16 2016-01-21 Federal-Mogul Burscheid Gmbh Gleitelement, insbesondere Kolbenring, und Verfahren zur Herstellung desselben
BR102015008817B1 (pt) * 2015-04-17 2022-08-30 Mahle International Gmbh Anel de pistão para motores de combustão interna
US10030773B2 (en) 2016-03-04 2018-07-24 Mahle International Gmbh Piston ring
WO2019045520A1 (fr) * 2017-08-31 2019-03-07 한국생산기술연구원 Segment de piston à film de revêtement à faible frottement et son procédé de fabrication
DE102017221606A1 (de) 2017-11-30 2019-06-06 Federal-Mogul Burscheid Gmbh Kolbenring

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Title
See references of WO2009016051A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038868A1 (de) 2010-08-04 2012-02-09 Federal-Mogul Burscheid Gmbh Kolbenring mit Innenbeschichtung
DE102011076453A1 (de) 2011-05-25 2012-11-29 Federal-Mogul Burscheid Gmbh Kolbenring mit Verbundbeschichtung
DE102011076453B4 (de) * 2011-05-25 2013-08-01 Federal-Mogul Burscheid Gmbh Kolbenring mit Verbundbeschichtung

Also Published As

Publication number Publication date
US20100187765A1 (en) 2010-07-29
BRPI0814130B1 (pt) 2018-12-26
PT2183404E (pt) 2013-07-18
BRPI0814130A2 (pt) 2015-02-03
JP2010534801A (ja) 2010-11-11
WO2009016051A1 (fr) 2009-02-05
US9447490B2 (en) 2016-09-20
EP2183404B1 (fr) 2013-06-05
DE102007035502A1 (de) 2009-02-05
CN101835919A (zh) 2010-09-15
JP5628030B2 (ja) 2014-11-19

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